./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1051.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fa375491f6ee23468a1ede5cb9608fff6035ced .......................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fa375491f6ee23468a1ede5cb9608fff6035ced ....................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:44:55,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:44:55,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:44:55,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:44:55,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:44:55,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:44:55,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:44:55,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:44:55,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:44:55,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:44:55,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:44:55,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:44:55,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:44:55,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:44:55,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:44:55,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:44:55,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:44:55,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:44:55,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:44:55,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:44:55,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:44:55,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:44:55,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:44:55,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:44:55,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:44:55,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:44:55,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:44:55,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:44:55,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:44:55,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:44:55,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:44:55,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:44:55,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:44:55,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:44:55,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:44:55,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:44:55,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:44:55,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:44:55,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:44:55,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:44:55,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:44:55,835 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:44:55,869 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:44:55,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:44:55,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:44:55,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:44:55,876 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:44:55,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:44:55,878 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:44:55,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:44:55,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:44:55,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:44:55,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:44:55,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:44:55,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:44:55,881 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:44:55,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:44:55,882 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:44:55,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:44:55,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:44:55,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:44:55,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:44:55,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:44:55,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:44:55,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:44:55,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:44:55,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:44:55,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:44:55,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:44:55,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:44:55,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2019-11-27 23:44:56,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:44:56,236 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:44:56,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:44:56,242 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:44:56,242 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:44:56,243 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-27 23:44:56,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14efd464/89f888ea3cfb47f194b3a06d298ad0ed/FLAG578fc3de8 [2019-11-27 23:44:56,841 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:44:56,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-27 23:44:56,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14efd464/89f888ea3cfb47f194b3a06d298ad0ed/FLAG578fc3de8 [2019-11-27 23:44:57,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14efd464/89f888ea3cfb47f194b3a06d298ad0ed [2019-11-27 23:44:57,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:44:57,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:44:57,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:44:57,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:44:57,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:44:57,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245e5474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57, skipping insertion in model container [2019-11-27 23:44:57,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:44:57,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:44:57,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:44:57,518 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:44:57,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:44:57,710 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:44:57,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57 WrapperNode [2019-11-27 23:44:57,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:44:57,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:44:57,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:44:57,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:44:57,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:44:57,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:44:57,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:44:57,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:44:57,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:44:57,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:44:57,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:44:57,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:44:57,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:44:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:44:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:44:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-27 23:44:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:44:57,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:44:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:44:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:44:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:44:58,320 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:44:58,320 INFO L297 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-27 23:44:58,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:44:58 BoogieIcfgContainer [2019-11-27 23:44:58,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:44:58,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:44:58,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:44:58,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:44:58,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:44:57" (1/3) ... [2019-11-27 23:44:58,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a08a8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:44:58, skipping insertion in model container [2019-11-27 23:44:58,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57" (2/3) ... [2019-11-27 23:44:58,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a08a8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:44:58, skipping insertion in model container [2019-11-27 23:44:58,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:44:58" (3/3) ... [2019-11-27 23:44:58,330 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2019-11-27 23:44:58,340 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:44:58,348 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:44:58,361 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:44:58,389 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:44:58,389 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:44:58,389 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:44:58,390 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:44:58,390 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:44:58,390 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:44:58,390 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:44:58,391 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:44:58,408 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-27 23:44:58,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:44:58,415 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:44:58,416 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:44:58,417 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:44:58,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:44:58,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-27 23:44:58,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:44:58,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504056511] [2019-11-27 23:44:58,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:44:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:44:58,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:44:58,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504056511] [2019-11-27 23:44:58,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:44:58,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 23:44:58,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265557685] [2019-11-27 23:44:58,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:44:58,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:44:58,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:44:58,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:44:58,571 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-27 23:44:58,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:44:58,588 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-27 23:44:58,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:44:58,590 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-27 23:44:58,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:44:58,601 INFO L225 Difference]: With dead ends: 66 [2019-11-27 23:44:58,601 INFO L226 Difference]: Without dead ends: 31 [2019-11-27 23:44:58,605 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:44:58,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-27 23:44:58,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-27 23:44:58,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-27 23:44:58,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-27 23:44:58,636 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-27 23:44:58,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:44:58,637 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-27 23:44:58,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:44:58,637 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-27 23:44:58,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:44:58,638 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:44:58,638 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:44:58,638 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:44:58,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:44:58,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-27 23:44:58,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:44:58,639 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972786883] [2019-11-27 23:44:58,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:44:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:44:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:44:58,746 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:44:58,746 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:44:58,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:44:58 BoogieIcfgContainer [2019-11-27 23:44:58,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:44:58,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:44:58,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:44:58,786 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:44:58,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:44:58" (3/4) ... [2019-11-27 23:44:58,792 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:44:58,792 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:44:58,796 INFO L168 Benchmark]: Toolchain (without parser) took 1616.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -125.7 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:44:58,796 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:44:58,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:44:58,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:44:58,800 INFO L168 Benchmark]: Boogie Preprocessor took 36.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:44:58,801 INFO L168 Benchmark]: RCFGBuilder took 525.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:44:58,802 INFO L168 Benchmark]: TraceAbstraction took 461.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:44:58,802 INFO L168 Benchmark]: Witness Printer took 7.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:44:58,807 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 532.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 525.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 461.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Witness Printer took 7.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L88] double x = 0.0 / 0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L89] double res = floor_double(x); [L80] return x != x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:45:00,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:45:00,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:45:00,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:45:00,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:45:00,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:45:00,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:45:00,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:45:00,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:45:00,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:45:00,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:45:00,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:45:00,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:45:00,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:45:00,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:45:00,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:45:00,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:45:00,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:45:00,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:45:00,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:45:00,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:45:00,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:45:00,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:45:00,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:45:00,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:45:00,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:45:00,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:45:00,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:45:00,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:45:00,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:45:00,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:45:00,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:45:00,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:45:00,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:45:00,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:45:00,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:45:00,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:45:00,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:45:00,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:45:00,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:45:00,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:45:00,879 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:45:00,914 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:45:00,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:45:00,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:45:00,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:45:00,920 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:45:00,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:45:00,921 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:45:00,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:45:00,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:45:00,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:45:00,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:45:00,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:45:00,925 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:45:00,925 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:45:00,926 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:45:00,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:45:00,926 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:45:00,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:45:00,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:45:00,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:45:00,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:45:00,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:45:00,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:45:00,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:45:00,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:45:00,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:45:00,931 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:45:00,931 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:45:00,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:45:00,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:45:00,932 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2019-11-27 23:45:01,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:45:01,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:45:01,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:45:01,316 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:45:01,317 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:45:01,319 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-27 23:45:01,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e5357e0/a740892a16194e6a94ddc7b3af0b64b4/FLAG76ace434d [2019-11-27 23:45:01,919 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:45:01,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-27 23:45:01,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e5357e0/a740892a16194e6a94ddc7b3af0b64b4/FLAG76ace434d [2019-11-27 23:45:02,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e5357e0/a740892a16194e6a94ddc7b3af0b64b4 [2019-11-27 23:45:02,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:45:02,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:45:02,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:02,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:45:02,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:45:02,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bcb722f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02, skipping insertion in model container [2019-11-27 23:45:02,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:45:02,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:45:02,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:02,492 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:45:02,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:02,619 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:45:02,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02 WrapperNode [2019-11-27 23:45:02,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:02,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:02,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:45:02,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:45:02,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:02,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:45:02,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:45:02,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:45:02,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:45:02,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:45:02,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:45:02,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:45:02,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:45:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-27 23:45:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-27 23:45:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:45:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 23:45:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:45:02,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:45:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 23:45:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:45:04,228 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:45:04,228 INFO L297 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-27 23:45:04,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:04 BoogieIcfgContainer [2019-11-27 23:45:04,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:45:04,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:45:04,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:45:04,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:45:04,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:45:02" (1/3) ... [2019-11-27 23:45:04,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d27659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:04, skipping insertion in model container [2019-11-27 23:45:04,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02" (2/3) ... [2019-11-27 23:45:04,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d27659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:04, skipping insertion in model container [2019-11-27 23:45:04,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:04" (3/3) ... [2019-11-27 23:45:04,238 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2019-11-27 23:45:04,248 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:45:04,257 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:45:04,266 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:45:04,292 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:45:04,292 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:45:04,293 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:45:04,293 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:45:04,293 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:45:04,293 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:45:04,294 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:45:04,294 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:45:04,310 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-27 23:45:04,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:45:04,317 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:04,318 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:04,318 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:04,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:04,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-27 23:45:04,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:04,333 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085044393] [2019-11-27 23:45:04,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-27 23:45:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:04,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-27 23:45:04,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:04,445 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:04,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:04,451 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085044393] [2019-11-27 23:45:04,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:04,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-27 23:45:04,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606275526] [2019-11-27 23:45:04,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:45:04,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:04,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:45:04,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:04,476 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-27 23:45:04,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:04,498 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-27 23:45:04,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:45:04,500 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-27 23:45:04,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:04,512 INFO L225 Difference]: With dead ends: 66 [2019-11-27 23:45:04,512 INFO L226 Difference]: Without dead ends: 31 [2019-11-27 23:45:04,516 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:04,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-27 23:45:04,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-27 23:45:04,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-27 23:45:04,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-27 23:45:04,555 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-27 23:45:04,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:04,555 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-27 23:45:04,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:45:04,556 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-27 23:45:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:45:04,556 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:04,557 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:04,769 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:45:04,769 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:04,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:04,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-27 23:45:04,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:04,773 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591897956] [2019-11-27 23:45:04,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-27 23:45:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:04,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-27 23:45:04,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:04,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:45:05,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:05,034 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:05,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:05,150 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591897956] [2019-11-27 23:45:05,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:05,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-27 23:45:05,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893237268] [2019-11-27 23:45:05,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-27 23:45:05,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:05,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-27 23:45:05,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-27 23:45:05,154 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 10 states. [2019-11-27 23:45:06,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:06,431 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2019-11-27 23:45:06,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-27 23:45:06,432 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-27 23:45:06,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:06,433 INFO L225 Difference]: With dead ends: 42 [2019-11-27 23:45:06,433 INFO L226 Difference]: Without dead ends: 21 [2019-11-27 23:45:06,435 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-11-27 23:45:06,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-27 23:45:06,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-27 23:45:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-27 23:45:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-27 23:45:06,439 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2019-11-27 23:45:06,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:06,439 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-27 23:45:06,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-27 23:45:06,440 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-27 23:45:06,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-27 23:45:06,440 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:06,441 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:06,653 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:45:06,654 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:06,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:06,655 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2019-11-27 23:45:06,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:06,658 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136149285] [2019-11-27 23:45:06,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-27 23:45:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:06,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-27 23:45:06,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:07,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:07,007 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:07,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:07,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136149285] [2019-11-27 23:45:07,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:07,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-27 23:45:07,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829253362] [2019-11-27 23:45:07,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-27 23:45:07,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:07,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-27 23:45:07,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-27 23:45:07,213 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2019-11-27 23:45:07,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:07,481 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-27 23:45:07,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 23:45:07,482 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-27 23:45:07,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:07,483 INFO L225 Difference]: With dead ends: 21 [2019-11-27 23:45:07,483 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:45:07,484 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-27 23:45:07,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:45:07,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:45:07,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:45:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:45:07,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-27 23:45:07,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:07,485 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:45:07,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-27 23:45:07,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:45:07,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:45:07,691 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 23:45:07,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:45:07,797 INFO L246 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2019-11-27 23:45:07,797 INFO L246 CegarLoopResult]: For program point L27(lines 27 46) no Hoare annotation was computed. [2019-11-27 23:45:07,797 INFO L246 CegarLoopResult]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2019-11-27 23:45:07,798 INFO L242 CegarLoopResult]: At program point L19-2(lines 19 24) the Hoare annotation is: (not (fp.eq ULTIMATE.start_floor_double_~x ULTIMATE.start_floor_double_~x)) [2019-11-27 23:45:07,798 INFO L246 CegarLoopResult]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2019-11-27 23:45:07,798 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:45:07,798 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:45:07,799 INFO L246 CegarLoopResult]: For program point L28(lines 28 35) no Hoare annotation was computed. [2019-11-27 23:45:07,799 INFO L246 CegarLoopResult]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-11-27 23:45:07,799 INFO L246 CegarLoopResult]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2019-11-27 23:45:07,799 INFO L246 CegarLoopResult]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2019-11-27 23:45:07,799 INFO L246 CegarLoopResult]: For program point L62(lines 62 63) no Hoare annotation was computed. [2019-11-27 23:45:07,799 INFO L246 CegarLoopResult]: For program point L29(lines 29 34) no Hoare annotation was computed. [2019-11-27 23:45:07,800 INFO L246 CegarLoopResult]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2019-11-27 23:45:07,800 INFO L246 CegarLoopResult]: For program point L54(lines 54 55) no Hoare annotation was computed. [2019-11-27 23:45:07,800 INFO L246 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-27 23:45:07,800 INFO L242 CegarLoopResult]: At program point L80(line 80) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_floor_double_~x ULTIMATE.start_floor_double_~x)) (not (fp.eq |ULTIMATE.start_floor_double_#res| |ULTIMATE.start_floor_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-11-27 23:45:07,800 INFO L246 CegarLoopResult]: For program point L47(lines 47 69) no Hoare annotation was computed. [2019-11-27 23:45:07,801 INFO L249 CegarLoopResult]: At program point L97(lines 82 98) the Hoare annotation is: true [2019-11-27 23:45:07,802 INFO L246 CegarLoopResult]: For program point L31(lines 31 34) no Hoare annotation was computed. [2019-11-27 23:45:07,802 INFO L246 CegarLoopResult]: For program point L56(lines 56 68) no Hoare annotation was computed. [2019-11-27 23:45:07,802 INFO L246 CegarLoopResult]: For program point L48(lines 48 51) no Hoare annotation was computed. [2019-11-27 23:45:07,802 INFO L246 CegarLoopResult]: For program point L40(lines 40 45) no Hoare annotation was computed. [2019-11-27 23:45:07,802 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:45:07,803 INFO L246 CegarLoopResult]: For program point L57(lines 57 66) no Hoare annotation was computed. [2019-11-27 23:45:07,803 INFO L246 CegarLoopResult]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2019-11-27 23:45:07,803 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2019-11-27 23:45:07,804 INFO L246 CegarLoopResult]: For program point L41(lines 41 42) no Hoare annotation was computed. [2019-11-27 23:45:07,804 INFO L246 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-27 23:45:07,804 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:45:07,804 INFO L246 CegarLoopResult]: For program point L58(lines 58 65) no Hoare annotation was computed. [2019-11-27 23:45:07,804 INFO L246 CegarLoopResult]: For program point L92(lines 92 95) no Hoare annotation was computed. [2019-11-27 23:45:07,805 INFO L246 CegarLoopResult]: For program point L26(lines 26 69) no Hoare annotation was computed. [2019-11-27 23:45:07,805 INFO L242 CegarLoopResult]: At program point L76(lines 16 77) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_floor_double_~x ULTIMATE.start_floor_double_~x)) (not (fp.eq |ULTIMATE.start_floor_double_#res| |ULTIMATE.start_floor_double_#res|))) [2019-11-27 23:45:07,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:45:07 BoogieIcfgContainer [2019-11-27 23:45:07,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:45:07,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:45:07,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:45:07,825 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:45:07,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:04" (3/4) ... [2019-11-27 23:45:07,830 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:45:07,845 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-27 23:45:07,846 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-27 23:45:07,846 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:45:07,882 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) [2019-11-27 23:45:07,883 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result [2019-11-27 23:45:07,929 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:45:07,929 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:45:07,931 INFO L168 Benchmark]: Toolchain (without parser) took 5663.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 960.4 MB in the beginning and 950.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 106.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:07,932 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:07,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -124.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:07,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:07,934 INFO L168 Benchmark]: Boogie Preprocessor took 52.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:07,934 INFO L168 Benchmark]: RCFGBuilder took 1493.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:07,935 INFO L168 Benchmark]: TraceAbstraction took 3593.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 950.2 MB in the end (delta: 107.2 MB). Peak memory consumption was 107.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:07,935 INFO L168 Benchmark]: Witness Printer took 104.31 ms. Allocated memory is still 1.1 GB. Free memory is still 950.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:07,939 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 351.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -124.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1493.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3593.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 950.2 MB in the end (delta: 107.2 MB). Peak memory consumption was 107.2 MB. Max. memory is 11.5 GB. * Witness Printer took 104.31 ms. Allocated memory is still 1.1 GB. Free memory is still 950.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: SAFE, OverallTime: 3.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 75 SDs, 0 SdLazy, 60 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 26 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 3143 SizeOfPredicates, 18 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...